cdw.sh

# ############################################################################ #
#                                  cdw begins
# ############################################################################ #
#  Custom shell extension to track and list top 25 most used file system paths #
# ############################################################################ #

remove_duplicates_and_update_visits() {
    local cd_history_file=~/.cd_history
    local cd_visits_file=~/.cd_visits

    [[ -f "$cd_history_file" ]] || touch "$cd_history_file"

    update_cd_visits "$cd_history_file" "$cd_visits_file"

    # Remove duplicates while keeping latest entries
    tac "$cd_history_file" | awk '!seen[$0]++' | tac > "${cd_history_file}.tmp"
    mv "${cd_history_file}.tmp" "$cd_history_file"

    # Normalize paths
    replace_dot_slash_with_tilde "$cd_history_file"
}

replace_dot_slash_with_tilde() {
    local file="$1"
    sed -i 's|^\./|~|g' "$file"
}

update_cd_visits() {
    local cd_master_log="$1"
    local cd_visits_file="$2"

    # Ensure the master log exists
    [[ -f "$cd_master_log" ]] || touch "$cd_master_log"

    # Count occurrences and store the top 25
    awk '{ count[$0]++ } END { for (dir in count) print count[dir], dir }' "$cd_master_log" \
        | sort -nr \
        | head -n 25 \
        > "$cd_visits_file"
}

cd() {
    builtin cd "$1" || return
    local cd_history_file=~/.cd_history
    local cd_master_log=~/.cd_master_log
    local cd_visits_file=~/.cd_visits
    local current_dir=$(pwd)

    [[ -f "$cd_history_file" ]] || touch "$cd_history_file"
    [[ -f "$cd_master_log" ]] || touch "$cd_master_log"

    # Normalize home directory paths
    [[ "$current_dir" == "$HOME" ]] && current_dir="~"

    echo "$current_dir" >> "$cd_history_file"
    echo "$current_dir" >> "$cd_master_log"

    update_cd_visits "$cd_master_log" "$cd_visits_file"

    ls_dynamic "$current_dir"
}

ls_dynamic() {
    clear
    local DIR="${1:-$(pwd)}"

    [[ "$DIR" == "~" ]] && DIR="$HOME"

    item_count=$(find "$DIR" -maxdepth 1 -mindepth 1 | wc -l)
    echo "Item count: $item_count"

    if [ "$item_count" -gt 20 ]; then
        eza -a --icons --group-directories-first "$DIR"
    else
        eza -a --icons -1 --group-directories-first "$DIR"
    fi
}

cdw() {
    local cd_visits_file=~/.cd_visits
    [[ -f "$cd_visits_file" ]] || touch "$cd_visits_file"

    local dir=$(cut -d' ' -f2- "$cd_visits_file" | fzf --height 20 --reverse --prompt="Select directory: ")

    if [[ -n "$dir" ]]; then
        echo "cd $dir"
        eval cd "$dir"
    else
        echo "No directory selected."
    fi
}

# ############################################################################ #
# cdw ends - Set of scripts to keep track of top 25 most used file ...         #
# ############################################################################ #